Gramophone attachment.



UNTTED STATES Patented June 20, 1905.

PATENT @rrrca.

GRAIVIOPHONE ATTACHMENT.

SPECIFICATION forming part of Letters Patent No. 792,779, dated June 20, 1905.

Application filed September 15, 1904. $erial No. 224,525.

To all whom it may concern.-

Be it known that I, GAnoR KoNIosrnIN, a citizen of the United States, residing in the city and county of San Francisco and State of California, have invented new and useful Improvements in Gramophone Attachments, of which the following is a specification.

My invention relates to an attachment which is designed for use in conjunction with the movable arms of gramophones or talking-machines; and it is especially designed to protect the diaphragm and its attachments from injury.

My invention consists of the parts and the constructions and combinations of parts which I will hereinafter describe and claim.

Figure 1 shows application of myimproved attachment. Fig. 2 is a sectional view of diaphragm and ring. Fig. 3 is a perspective View of my attachment. Figs. 4: and 5 are modified forms of same.

In the present drawings I have only shown a suflicient portion of the machine toillustrate the attachment of my device.

The fixed a-rmA has the arm2swiveled and turnable upon it; At the outer end of this arm 2 is the U-shaped arm 3, which is swiveled and freely turnable transversely to the end of the arm 2. The free end of the arm 3 carries the ring l, within which ring is the diaphragm 5 and the socket or support 6 for the needle or stylus which follows the undulations 0f the record-disk when the machine is in operation. The inner end of the socket 6 has a light fragile connection 7 between itself and the center of the diaphragm 5, and through this connection the articulate or other sounds are transmitted. This apparatus is subject to injury on account of its delicate nature, and especially in careless handling, as the arm 3, carrying the ring 4 and the attached parts, is frequently turned upward and backward to rest upon the arm 2 when not in use and thrown forward and downward, so that the stylus will engage with the recorddisk, when it is to be used. In effecting these movements there is danger that the operator will carelessly touch and disarrange the delicate transmitting mechanism, and for the purpose of protecting these parts from such injury and at the same time allowing a free passage of sounds I have shown a cylindrical cap, as at 9, adapted to inclosethe ring 4, this cap having bars, perforations, reticulations, or other form of opening 10 sufficient to permit the free passage of tones, at the same time being sufficient to prevent any accidental contact with the delicate interior portions. This cylindrical cap may be independent of the ring 4 and adapted to lit over it, as shown, and in this case it may carry upon one side a cushion, as at 11, which when the arm 3 is turned back will rest upon the arm 2 and prevent injury to this arm, which for convenience is usually made of very thin light metal.

This ring may also carry a sleeve 12, within which'is a reciprocating spring-pressed plunger, the shank 13 of which is turned downward and carries upon its lower end a cushion, as at 14, of suchacharacter as to prevent the stylus or needle from striking the recorddisk when the arm 3 is first turned down to bring the stylus into proper position.

It will be understood that the cap-shaped member or grill is preferably a mere attachment made independent of the usual soundbox, and therefore is capable of being fitted to boxes now in use. It forms no permanent part of the box, and it can be removed at any time Without disarranging the component parts of the box.

Having thus described my invention, WhatI claim, and desire to secure by Letters Patent,

1. The combination in a gramophone, of a sound-box comprising a transmitting-disk and a stylus and support therefor, and an attachment removably fitted to the box and serving as a protection for the stylus said attachment provided with openings to permit the passage of sound\vaves.

2. The combination with a sound-box having a stylus, a diaphragm and stylus-support, of a cap-shaped grill removably fitted to the box and serving as an attachment therefor, and as means for protecting the stylus-support without obstructing the passage of the soundwaves.

3. The combination with a sound-box having a stylus, a diaphragm and a stylus-support,

of a shiftable cap-shaped attachment removably fitted to the box to serve as a protector for the stylus, said attachment having openings for the passage of sound-Waves, and having cushion means for further protecting the stylus from sudden shock.

4:. In a machine of the character described,

a sound-box including a diaphragm, a stylus and a stylus-support, in combination with a readily-removable covering placed in front of'the stylus-support to protect the same from injury said covering made perforate to permit the passage of sound-Waves.

5. A readily-attachable and removable capshaped member adapted to fit the sound-box of a gramophone, said member serving to protect the stylus-support of the box and being made perforate to permit the free passage of sound-Waves.

In testimony whereof I have hereunto set my hand in presence of tWo subscribing Witnesses.

- GABOR KONIGSTEIN. Witnesses:

ALFRED A. ENQUIST, S. H. NoURsE. 

